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Groups > linux.kernel > #1682611 > unrolled thread

[PATCH] tpm: tpm_crb: constify acpi_device_id.

Started byArvind Yadav <arvind.yadav.cs@gmail.com>
First post2017-07-06 19:50 +0200
Last post2017-07-16 13:30 +0200
Articles 3 — 2 participants

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  [PATCH] tpm: tpm_crb: constify acpi_device_id. Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-07-06 19:50 +0200
    Re: [PATCH] tpm: tpm_crb: constify acpi_device_id. Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-07-09 09:10 +0200
    Re: [PATCH] tpm: tpm_crb: constify acpi_device_id. Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-07-16 13:30 +0200

#1682611 — [PATCH] tpm: tpm_crb: constify acpi_device_id.

FromArvind Yadav <arvind.yadav.cs@gmail.com>
Date2017-07-06 19:50 +0200
Subject[PATCH] tpm: tpm_crb: constify acpi_device_id.
Message-ID<u0j4B-dn-11@gated-at.bofh.it>
acpi_device_id are not supposed to change at runtime. All functions
working with acpi_device_id provided by <acpi/acpi_bus.h> work with
const acpi_device_id. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   4198	    608	      0	   4806	   12c6	drivers/char/tpm/tpm_crb.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   4262	    520	      0	   4782	   12ae	drivers/char/tpm/tpm_crb.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/char/tpm/tpm_crb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index b917b9d..bf7189e 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -665,7 +665,7 @@ static const struct dev_pm_ops crb_pm = {
 	SET_RUNTIME_PM_OPS(crb_pm_runtime_suspend, crb_pm_runtime_resume, NULL)
 };
 
-static struct acpi_device_id crb_device_ids[] = {
+static const struct acpi_device_id crb_device_ids[] = {
 	{"MSFT0101", 0},
 	{"", 0},
 };
-- 
2.7.4

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#1683694

FromJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Date2017-07-09 09:10 +0200
Message-ID<u1evT-4FV-1@gated-at.bofh.it>
In reply to#1682611
On Thu, Jul 06, 2017 at 11:18:39PM +0530, Arvind Yadav wrote:
> acpi_device_id are not supposed to change at runtime. All functions
> working with acpi_device_id provided by <acpi/acpi_bus.h> work with
> const acpi_device_id. So mark the non-const structs as const.
> 
> File size before:
>    text	   data	    bss	    dec	    hex	filename
>    4198	    608	      0	   4806	   12c6	drivers/char/tpm/tpm_crb.o
> 
> File size After adding 'const':
>    text	   data	    bss	    dec	    hex	filename
>    4262	    520	      0	   4782	   12ae	drivers/char/tpm/tpm_crb.o
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>

Thanks!

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

/Jarkko

> ---
>  drivers/char/tpm/tpm_crb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
> index b917b9d..bf7189e 100644
> --- a/drivers/char/tpm/tpm_crb.c
> +++ b/drivers/char/tpm/tpm_crb.c
> @@ -665,7 +665,7 @@ static const struct dev_pm_ops crb_pm = {
>  	SET_RUNTIME_PM_OPS(crb_pm_runtime_suspend, crb_pm_runtime_resume, NULL)
>  };
>  
> -static struct acpi_device_id crb_device_ids[] = {
> +static const struct acpi_device_id crb_device_ids[] = {
>  	{"MSFT0101", 0},
>  	{"", 0},
>  };
> -- 
> 2.7.4
> 

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#1688191

FromJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Date2017-07-16 13:30 +0200
Message-ID<u3PUl-6KN-1@gated-at.bofh.it>
In reply to#1682611
On Thu, 2017-07-06 at 23:18 +0530, Arvind Yadav wrote:
> acpi_device_id are not supposed to change at runtime. All functions
> working with acpi_device_id provided by <acpi/acpi_bus.h> work with
> const acpi_device_id. So mark the non-const structs as const.
> 
> File size before:
>    text	   data	    bss	    dec	    hex	filename
>    4198	    608	      0	   4806	   12c6	drivers/char/tpm/tpm_crb.o
> 
> File size After adding 'const':
>    text	   data	    bss	    dec	    hex	filename
>    4262	    520	      0	   4782	   12ae	drivers/char/tpm/tpm_crb.o
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> ---
>  drivers/char/tpm/tpm_crb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
> index b917b9d..bf7189e 100644
> --- a/drivers/char/tpm/tpm_crb.c
> +++ b/drivers/char/tpm/tpm_crb.c
> @@ -665,7 +665,7 @@ static const struct dev_pm_ops crb_pm = {
>  	SET_RUNTIME_PM_OPS(crb_pm_runtime_suspend, crb_pm_runtime_resume, NULL)
>  };
>  
> -static struct acpi_device_id crb_device_ids[] = {
> +static const struct acpi_device_id crb_device_ids[] = {
>  	{"MSFT0101", 0},
>  	{"", 0},
>  };

Applied.

/Jarkko

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